Consensus prostate antigens, nucleic acid molecule encoding the same and vaccine and uses comprising the same

Abstract

Provided herein are consensus amino acid sequences of prostate antigens that are capable of breaking tolerance in a targeted species, including PSA, PSMA, STEAP and PSCA antigens. Also provided are nucleic acid sequences that encode one or more consensus amino acid sequences of prostate antigens PSA, PSMA, STEAP and PSCA, as well as genetic constructs/vectors and vaccines expressing the sequences. Also provided herein are methods for generating an autoimmune response against prostate cancer cells by administering one or more of the vaccines, proteins, and/or nucleic acid sequences that are provided.

The invention claimed is: 
     
       1. A method of inducing an immune response in an individual diagnosed with prostate cancer, comprising administering to the individual a composition comprising one or more proteins selected from the group consisting of:
 a protein comprising SEQ ID NO:2; a protein that is 98% homologous to SEQ ID NO:2, provided amino acids 69, 78, 80, 82, 102, 110, 137, 139, 165, 189, 203, 220, 232 and 248 of SEQ ID NO:2 are conserved; an immunogenic fragment of SEQ ID NO:2 comprising amino acids corresponding to at least 256 amino acid residues of SEQ ID NO:2 provided amino acids 69, 78, 80, 82, 102, 110, 137, 139, 165, 189, 203, 220, 232 and 248 of SEQ ID NO:2 are conserved; a protein comprising SEQ ID NO:4; a protein that is 98% homologous to SEQ ID NO:4, provided amino acids 21, 86, 127, 129, 154, 156, 182, 195, 206, 218, 220, 237, 249, 255, 265, 271 or 275 of SEQ ID NO:4 are conserved; an immunogenic fragment of SEQ ID NO:4 comprising amino acids corresponding to at least 274 amino acid residues of SEQ ID NO:4, provided amino acids 21, 86, 127, 129, 154, 156, 182, 195, 206, 218, 220, 237, 249, 255, 265, 271 or 275 of SEQ ID NO:4 are conserved; a protein comprising SEQ ID NO:6; a protein that is 98% homologous to SEQ ID NO:6, provided amino acids 14, 15, 32, 47, 58, 79, 111, 157, 223, 320, 350, 475, 499, 569, 613, 624, 653, 660, 663, 733 and 734 of SEQ ID NO:6 are conserved; an immunogenic fragment of SEQ ID NO:6 comprising amino acids corresponding to at least 735 amino acid residues of SEQ ID NO:6, provided amino acids 14, 15, 32, 47, 58, 79, 111, 157, 223, 320, 350, 475, 499, 569, 613, 624, 653, 660, 663, 733 and 734 of SEQ ID NO:6 are conserved; a protein comprising SEQ ID NO:8; a protein that is 98% homologous to SEQ ID NO:8; provided amino acids 21, 31, 32, 49, 64, 75, 96, 128, 174, 240, 337, 367, 492, 516, 565, 586, 630, 641, 670, 677, 680, 750, and 751 of SEQ ID NO:8 are conserved; and an immunogenic fragment of SEQ ID NO:8 comprising amino acids corresponding to at least 752 amino acid residues of SEQ ID NO:8, provided amino acids 21, 31, 32, 49, 64, 75, 96, 128, 174, 240, 337, 367, 492, 516, 565, 586, 630, 641, 670, 677, 680, 750, and 751 of SEQ ID NO:8 are conserved. 
 
     
     
       2. The method of  claim 1 , wherein the method comprises administering to the individual a composition comprising one or more proteins selected from the group consisting of: a protein comprising SEQ ID NO: 2, a protein comprising SEQ ID NO: 4, a protein comprising SEQ ID NO: 6, and a protein comprising SEQ ID NO: 8.